ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

>> Home   >> Electrical-Photos   >> Classifieds   >> Subscribe to Newsletter   >> Store  
 

Photo of the Week:

Mouse on a Bus
Mouse on a Bus

Advertisement:-Left
Recent Gallery Topics:
What in Tarnation?
What in Tarnation?
by timmp, September 10
Plumber meets Electrician
Plumber meets Electrician
by timmp, September 10
Who's Online Now
0 members (), 101 guests, and 26 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#90428 11/21/04 12:40 AM
Joined: Nov 2004
Posts: 14
S
Member
We have 3 3 phase 3 HP fan motors that are
continuous duty.
Can we use cord and plug and the breaker
to operate the motors? or do we have to
use a overload section on each motor?

Thanks,
Sparky_1

Horizontal Ad
#90429 11/21/04 10:03 AM
Joined: Jan 2001
Posts: 1,044
Tom Offline
Member
Most 3 phase motors do not have built in overload protection. You have to install an overload device in each conductor & this is usually done with a motor starter. See 430.32

As for using the cord & plug connection, that will require a horsepower rated receptacle and a horsepower rated cord cap.430.109(F)

Tom


Few things are harder to put up with than the annoyance of a good example.
#90430 11/21/04 10:51 AM
Joined: Nov 2004
Posts: 14
S
Member
Thanks for the information Tom


Link Copied to Clipboard
Advertisement:-Right


Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC + Exam Prep Study Guides Now Available!
 

Member Spotlight
Trumpy
Trumpy
SI,New Zealand
Posts: 8,443
Joined: July 2002
Top Posters(30 Days)
Popular Topics(Views)
340,084 Are you busy
265,525 Re: Forum
246,539 Need opinion
New Page 2
Powered by UBB.threads™ PHP Forum Software 7.7.5